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CVE-2022-4283

Good to know:

Date: December 14, 2022

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

Language: C

Severity Score

7.8

Related Resources (15)

Url: https://access.redhat.com/errata/RHSA-2023:0046

Url: https://access.redhat.com/errata/RHSA-2023:0045

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2151761

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-4283

Url: https://security-tracker.debian.org/tracker/CVE-2022-4283

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/

Url: https://www.debian.org/security/2022/dsa-5304

Url: https://security.gentoo.org/glsa/202305-30

Url: https://access.redhat.com/security/cve/CVE-2022-4283

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/

Url: https://www.mend.io/vulnerability-database/CVE-2022-4283

Severity Score

7.8

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version xorg-server-21.1.5,xwayland-22.1.6

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CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

Mend.io Vulnerability Database

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CVE-2022-4283

Good to know:

Date: December 14, 2022

Language: C

Severity Score

Related Resources (15)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

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